Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Consumer Real Estate - TDRs Entered into During the Period (Details)

v3.10.0.1
Outstanding Loans and Leases - Consumer Real Estate - TDRs Entered into During the Period (Details) - Consumer real estate - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Financing Receivable, Modifications [Line Items]        
Unpaid Principal Balance $ 470 $ 596 $ 1,020 $ 1,115
Carrying Value $ 389 $ 514 $ 839 $ 946
Pre-Modification Interest Rate 4.32% 4.33% 4.25% 4.38%
Post-Modification Interest Rate 4.14% 4.19% 3.98% 4.09%
Net charge-offs $ 15 $ 12 $ 24 $ 20
Residential Mortgage        
Financing Receivable, Modifications [Line Items]        
Unpaid Principal Balance 276 346 628 646
Carrying Value $ 237 $ 313 $ 542 $ 581
Pre-Modification Interest Rate 4.24% 4.50% 4.17% 4.51%
Post-Modification Interest Rate 3.94% 4.37% 3.93% 4.34%
Home equity lines of credit        
Financing Receivable, Modifications [Line Items]        
Unpaid Principal Balance $ 194 $ 250 $ 392 $ 469
Carrying Value $ 152 $ 201 $ 297 $ 365
Pre-Modification Interest Rate 4.43% 4.11% 4.38% 4.20%
Post-Modification Interest Rate 4.42% 3.94% 4.06% 3.75%